ES442868A1 - Procedimiento de obtencion de un catalizador de xerogel de acido silicicontrioxido cromico. - Google Patents
Procedimiento de obtencion de un catalizador de xerogel de acido silicicontrioxido cromico.Info
- Publication number
- ES442868A1 ES442868A1 ES442868A ES442868A ES442868A1 ES 442868 A1 ES442868 A1 ES 442868A1 ES 442868 A ES442868 A ES 442868A ES 442868 A ES442868 A ES 442868A ES 442868 A1 ES442868 A1 ES 442868A1
- Authority
- ES
- Spain
- Prior art keywords
- xerogel
- silicic
- stage
- chromium trioxide
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polymerization Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742455535 DE2455535A1 (de) | 1974-11-23 | 1974-11-23 | Verfahren zum herstellen von olefinpolymerisaten |
Publications (1)
Publication Number | Publication Date |
---|---|
ES442868A1 true ES442868A1 (es) | 1977-04-01 |
Family
ID=5931569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES442868A Expired ES442868A1 (es) | 1974-11-23 | 1975-11-21 | Procedimiento de obtencion de un catalizador de xerogel de acido silicicontrioxido cromico. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4042770A (es) |
JP (1) | JPS5174076A (es) |
AT (1) | AT339041B (es) |
BE (1) | BE835819A (es) |
DE (1) | DE2455535A1 (es) |
ES (1) | ES442868A1 (es) |
FR (1) | FR2291985A1 (es) |
GB (1) | GB1519606A (es) |
IT (1) | IT1049915B (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2604549A1 (de) * | 1976-02-06 | 1977-08-11 | Basf Ag | Verfahren zum herstellen von olefinpolymerisaten |
US4081407A (en) * | 1976-03-18 | 1978-03-28 | Phillips Petroleum Company | Catalyst support prepared by alcohol treatment of hydrogels |
US4206297A (en) * | 1977-04-25 | 1980-06-03 | Chemplex Company | Polymerization catalysts and methods |
US4177162A (en) * | 1977-12-05 | 1979-12-04 | Phillips Petroleum Company | Sulfiding and reoxidation of chromium catalyst |
US4169926A (en) * | 1978-01-16 | 1979-10-02 | Phillips Petroleum Company | Inorganic hydrogels and uses thereof |
US4299731A (en) * | 1980-02-06 | 1981-11-10 | Phillips Petroleum Company | Large pore volume olefin polymerization catalysts |
US4384086A (en) * | 1980-02-06 | 1983-05-17 | Phillips Petroleum Company | Large pore volume olefin polymerization catalysts |
DE3634534A1 (de) * | 1986-10-10 | 1988-04-14 | Basf Ag | Verfahren zum herstellen von homo- sowie copolymerisaten des ethens mittels eines chromtrioxid-katalysators |
DE4134146A1 (de) * | 1991-10-16 | 1993-04-22 | Basf Ag | Phillips-katalysator und seine verwendung zur herstellung von ethylenhomopolymerisaten und -copolymerisaten |
DE4231749A1 (de) * | 1992-09-23 | 1994-03-24 | Basf Ag | Verfahren zur Herstellung eines Trägerkatalysators für die Polymerisation von alpha-Olefinen |
US5541304A (en) * | 1994-05-02 | 1996-07-30 | Hercules Incorporated | Crosslinked hydrogel compositions with improved mechanical performance |
DE4422912A1 (de) * | 1994-06-30 | 1996-01-11 | Hoechst Ag | Xerogele, Verfahren zu ihrer Herstellung, sowie ihre Verwendung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652216A (en) * | 1968-10-11 | 1972-03-28 | Nat Petro Chemicals Co Inc | Preparation of silica gels |
US3900457A (en) * | 1970-10-08 | 1975-08-19 | Phillips Petroleum Co | Olefin polymerization catalyst |
US3960826A (en) * | 1973-07-27 | 1976-06-01 | National Petro Chemicals Corporation | Olefin polymerization process |
-
1974
- 1974-11-23 DE DE19742455535 patent/DE2455535A1/de not_active Withdrawn
-
1975
- 1975-11-13 US US05/631,642 patent/US4042770A/en not_active Expired - Lifetime
- 1975-11-20 IT IT29507/75A patent/IT1049915B/it active
- 1975-11-21 GB GB47946/75A patent/GB1519606A/en not_active Expired
- 1975-11-21 AT AT887775A patent/AT339041B/de not_active IP Right Cessation
- 1975-11-21 FR FR7535674A patent/FR2291985A1/fr active Granted
- 1975-11-21 ES ES442868A patent/ES442868A1/es not_active Expired
- 1975-11-21 BE BE162076A patent/BE835819A/xx not_active IP Right Cessation
- 1975-11-22 JP JP50139783A patent/JPS5174076A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1519606A (en) | 1978-08-02 |
AT339041B (de) | 1977-09-26 |
FR2291985A1 (fr) | 1976-06-18 |
FR2291985B1 (es) | 1980-01-04 |
BE835819A (fr) | 1976-05-21 |
IT1049915B (it) | 1981-02-10 |
JPS5174076A (es) | 1976-06-26 |
US4042770A (en) | 1977-08-16 |
DE2455535A1 (de) | 1976-05-26 |
ATA887775A (de) | 1977-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19941222 |